2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2015-2019 The strace developers.
6 * SPDX-License-Identifier: GPL-2.0-or-later
12 #if defined __NR_get_robust_list && defined __NR_set_robust_list
18 sprintaddr(void *addr)
20 static char buf[sizeof(addr) * 2 + sizeof("0x")];
25 snprintf(buf, sizeof(buf), "%p", addr);
33 const pid_t pid = getpid();
34 const long long_pid = (unsigned long) (0xdeadbeef00000000LL | pid);
35 TAIL_ALLOC_OBJECT_CONST_PTR(void *, p_head);
36 TAIL_ALLOC_OBJECT_CONST_PTR(size_t, p_len);
38 if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
39 perror_msg_and_skip("get_robust_list");
40 printf("get_robust_list(%d, [%s], [%lu]) = 0\n",
41 (int) pid, sprintaddr(*p_head), (unsigned long) *p_len);
43 void *head = tail_alloc(*p_len);
44 if (syscall(__NR_set_robust_list, head, *p_len))
45 perror_msg_and_skip("set_robust_list");
46 printf("set_robust_list(%p, %lu) = 0\n",
47 head, (unsigned long) *p_len);
49 if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
50 perror_msg_and_skip("get_robust_list");
51 printf("get_robust_list(%d, [%s], [%lu]) = 0\n",
52 (int) pid, sprintaddr(*p_head), (unsigned long) *p_len);
54 puts("+++ exited with 0 +++");
60 SKIP_MAIN_UNDEFINED("__NR_get_robust_list && __NR_set_robust_list")